Which view is recommended for evaluating the 3D geometry of the LAA during TEE?

The recommended approach for evaluating the three-dimensional (3D) geometry of the left atrial appendage (LAA) during transesophageal echocardiography (TEE) is to utilize both long and short axis views. This combination allows for a comprehensive assessment of the LAA's morphology, size, and relationship to surrounding structures.

The long axis view provides a detailed perspective of the appendage's length and orientation, while the short axis view offers insights into the width and cross-sectional shape of the LAA. By integrating both views, clinicians can gain a more thorough understanding of the LAA's 3D geometry, which is crucial for planning procedures like LAA occlusion.

Using only one view, whether it be long or short axis, limits the diagnostic capability and could potentially lead to incomplete assessments. A multifaceted evaluation ensures better visualization and understanding of anatomical complexities, which is essential for successful interventions targeting the LAA.